From left, Democratic presidential candidates, former New York City Mayor Mike Bloomberg, Sen. Elizabeth Warren, D-Mass., Sen. Bernie Sanders, I-Vt., former Vice President Joe Biden, former South Bend Mayor Pete Buttigieg, Sen. Amy Klobuchar, D-Minn., participate in a Democratic presidential primary debate Wednesday, Feb. 19, 2020, in Las Vegas, hosted by NBC News and MSNBC. (AP Photo/John Locher)
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